| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 56.9 | 58.4 | 59.2 | 65.3 | 74.2 | 83.6 | 90.7 | 89.5 | 83.5 | 74.1 | 62.2 | 56.4 | 71.2 |
| Highest Mean Max. Temperature (F) | 64.5 | 64.0 | 68.3 | 73.8 | 80.8 | 89.3 | 95.3 | 95.4 | 88.8 | 81.4 | 68.6 | 66.2 | 72.7 |
| Year Highest Occurred | 1986 | 1977 | 1972 | 1987 | 1984 | 1985 | 1970 | 1967 | 1974 | 1965 | 1989 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 51.0 | 52.1 | 51.3 | 51.6 | 64.7 | 78.5 | 84.1 | 83.1 | 74.6 | 64.1 | 56.2 | 47.5 | 69.2 |
| Year Lowest Occurred | 1973 | 1969 | 1973 | 1967 | 1977 | 1969 | 1987 | 1976 | 1986 | 1972 | 1985 | 1971 | 1983 |
| Mean Temperature (F) | 42.6 | 44.6 | 45.9 | 50.1 | 56.8 | 64.3 | 70.6 | 69.7 | 64.5 | 56.3 | 47.1 | 42.1 | 54.6 |
| Highest Mean Temperature (F) | 49.7 | 50.8 | 52.3 | 56.6 | 61.9 | 68.7 | 74.2 | 74.5 | 68.8 | 60.9 | 52.4 | 48.0 | 55.7 |
| Year Highest Occurred | 1986 | 1963 | 1978 | 1989 | 1984 | 1985 | 1970 | 1967 | 1984 | 1988 | 1967 | 1980 | 1988 |
| Lowest Mean Temperature (F) | 39.2 | 40.7 | 40.6 | 40.8 | 51.1 | 60.0 | 66.0 | 64.7 | 58.1 | 51.0 | 43.7 | 37.1 | 52.6 |
| Year Lowest Occurred | 1973 | 1964 | 1973 | 1967 | 1977 | 1980 | 1987 | 1976 | 1986 | 1972 | 1978 | 1967 | 1971 |
| Mean Min. Temperature (F) | 28.2 | 30.7 | 32.6 | 34.8 | 39.4 | 45.0 | 50.5 | 49.9 | 45.4 | 38.4 | 31.9 | 27.8 | 37.9 |
| Highest Mean Min. Temperature (F) | 35.1 | 38.6 | 41.5 | 40.4 | 43.7 | 50.1 | 56.2 | 53.9 | 51.0 | 43.8 | 36.9 | 34.8 | 40.5 |
| Year Highest Occurred | 1978 | 1963 | 1978 | 1989 | 1963 | 1977 | 1984 | 1984 | 1984 | 1987 | 1967 | 1983 | 1983 |
| Lowest Mean Min. Temperature (F) | 23.0 | 23.6 | 26.7 | 29.5 | 35.6 | 40.3 | 45.0 | 45.8 | 40.8 | 32.5 | 26.8 | 22.3 | 35.7 |
| Year Lowest Occurred | 1963 | 1964 | 1977 | 1970 | 1962 | 1980 | 1983 | 1985 | 1964 | 1971 | 1961 | 1990 | 1971 |
| Mean Precipitation (in.) | 3.38 | 2.87 | 3.29 | 1.87 | 0.58 | 0.16 | 0.03 | 0.18 | 0.59 | 0.79 | 2.29 | 2.70 | 18.73 |
| Highest Precipitation (in.) | 11.12 | 9.68 | 7.72 | 6.47 | 3.14 | 0.81 | 0.32 | 1.91 | 6.39 | 3.22 | 7.36 | 8.74 | 39.67 |
| Year Highest Occurred | 1980 | 1969 | 1983 | 1967 | 1971 | 1969 | 1965 | 1983 | 1976 | 1974 | 1983 | 1966 | 1983 |
| Lowest Precipitation (in.) | 0.04 | 0.12 | 0.00 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 9.80 |
| Year Lowest Occurred | 1984 | 1988 | 1972 | 1962 | 1987 | 1990 | 1990 | 1990 | 1988 | 1990 | 1962 | 1989 | 1989 |
| Heating Degree Days (F) | 694. | 571. | 592. | 452. | 264. | 84. | 14. | 20. | 93. | 281. | 537. | 710. | 4312. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 5. | 10. | 63. | 188. | 166. | 78. | 11. | 0. | 0. | 521. |